MHF5210

Holden 253-308 V8 1 5/8in Header Flange Non EFI Head

Holden 253-308 V8 1 5/8in Header Flange Non EFI Head for selected vehicle applications.

BrandMantaMPI Automotive

Category: Extractors and headers

RRP $92.37 AUD
In stock at supplier
Afterpay, Zip Pay & Zip Money available
Afterpay acceptedZip accepted — Zip Pay and Zip Money
Generated transparent product-style artwork for MHF5210 Holden 253-308 V8 1 5/8in Header Flange Non EFI Head

Part specs

SKU
MHF5210
Supplier
MPI Automotive
Category
Extractors and headers
Stock status
In stock at supplier

The MPI Automotive MHF5210 is a header flange for the Holden 253 and 308 V8, cut for 1⅝in primary tubing and machined to the non-EFI head pattern. Two things define it: the small-bore 1⅝in primaries and the non-EFI head profile it's matched to — the carburettor-era head, not the later injected layout.

Why the non-EFI head pattern matters

The MHF5210 is profiled for the non-EFI Holden V8 head — the earlier, carburettor-era casting. Head pattern is what makes or breaks a flange: the bolt holes and port spacing have to land on your head exactly. Getting the non-EFI version means it's matched to that specific layout rather than the later injected head, so confirm which head your 253 or 308 wears before ordering.

What does 1⅝in primary tubing suit?

The flange is cut for 1⅝in primaries, the smaller of the common bores. Smaller primaries keep exhaust gas speed up, which favours low-down and mid-range response — well suited to a street Holden V8. As a flange it's the head-side foundation a fabricator builds the header from, not a finished bolt-on.

What is a header flange?

It's the plate that bolts to the cylinder head and locates the primary tubes during fabrication. The MHF5210 is a build and repair component for the 253/308 V8 — you weld 1⅝in primaries to it to construct or repair a set of headers.

What does the Illawarra workshop do with it?

Oak Flats Muffler Men supplies this MPI flange and can fabricate or repair the headers around it. Bring your Holden V8's head details — confirming it's the non-EFI head — and we'll check the 1⅝in flange suits the build before ordering.

Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.

Common questions

Which head is the MHF5210 for?
It's machined for the non-EFI (carburettor-era) Holden 253/308 head pattern, not the later injected head.
What primary size is it cut for?
1⅝in primaries — the smaller bore that favours low-down and mid-range response on a street V8.
Is it a complete header?
No — it's a header flange, a fabrication plate welded to primaries during a header build.

Fitment support across the Illawarra

Fitment checks near you across 18 Illawarra suburbs, from Oak Flats and Shellharbour to Wollongong and Kiama.
Show nearby fitment areasCollapse section

Book the right exhaust job without guessing.

Send the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.